Formulas

Question 1

Motion Equations

Answer 1

Vf= Vo + at
X= xo + vot + 1/2at^2
v^2= vo^2 + 2aX

Question 2

Force or Natural Force

Answer 2

ma, mg

Question 3

Force of Friction (Ff)

Answer 3

ukFn

Question 4

Centripetal Acceleration and Force

Answer 4

Ac= v^2/r

FAc=mv^2/r

Question 5

Torque

Answer 5

= Fsin(ø)

Question 6

Momentum

Answer 6

p=mv

Question 7

Impulse

Answer 7

J= F∆t= ∆p

Question 8

Kinetic Energy

Answer 8

1/2mv^2

Question 9

Gravitational Potential Energy

Answer 9

U or PEg= mgh

Question 10

Work

Answer 10

w= Fdcosø

Question 11

Power

Answer 11

W/∆t

Question 12

Spring Force

Answer 12

-kx

Question 13

Potential Spring Energy

Answer 13

1/2kx^2

Question 14

Period of Spring

Answer 14

2π √m/k

Question 15

Period of Pendulum

Answer 15

2π √l/g

Question 16

Period

Answer 16

1/f (frequency)

Question 17

Force/Potential Energy of Universal Gravitation

Answer 17

-GM1m2/ r^2

Question 18

Force (Electricity)

Answer 18

kq1q2/ r^2

Question 19

Electric Field

Answer 19

F/q

Question 20

Potential Electric Energy

Answer 20

qV = kq1q2/ r

Question 21

Average Electrical Field

Answer 21

• v/d

Question 22

Voltage in Series

Answer 22

k ( q1/r1 + q2/r2 + …..)

Question 23

Capacitance

Answer 23

Q/V or vacuum permititivity x A/d

Question 24

Potential Capacitance

Answer 24

1/2QV= 1/2CV^2

Question 25

Current

Answer 25

∆Q / T

Question 26

Resistance

Answer 26

p (resistivity) x length / A (area)

Question 27

Electric Potential/ Potential Difference (V)

Answer 27

V= IR

Question 28

Power (electricity)

Answer 28

IV

Question 29

Capacitance (in series and parallel circuit)

Answer 29

Cp= c1 + c2 + c3 ….

1/Cs= 1/c1 + 1/c2 + 1/c3 …

Question 30

Force of Magnetic Field ( 2 ways)

Answer 30

Fb= qvBsin ø
Fb= BI (length) sin ø

Question 31

Magnetic Field

Answer 31

magnetic constant/2π x I/r

Question 32

Magnetic Flux

Answer 32

BAcosø

Question 33

Avg. Emf

Answer 33

change in magnetic flux / time

or B x length x v

Question 34

Density (fluid)

Answer 34

m/V

Question 35

Pressure (liquid)

Answer 35

density (p) x gh

Question 36

Force of Buoyancy

Answer 36

density x Vg

Question 37

Rate of Heat Transfer

Answer 37

KE x Area x temp/ L (thicknesss)

Question 38

Pressure

Answer 38

F/ A

Question 39

Pressure x Volume (PV)

Answer 39

=nRT= NkbT

Question 40

Average Molecular KE

Answer 40

= 3/2 Kb T

Question 41

Work done on a System

Answer 41

-P∆V

Question 42

Internal Energy

Answer 42

∆U= Q + W

Question 43

Efficiency

Answer 43

e= W/ Qh

Question 44

Atomic Energy

Answer 44

E= hf= pc

Question 45

Kinetic Energy Max (Atomic)

Answer 45

KEmax= hf- ø (work function)

ø= Hft (ft= frequency threshold)

Question 46

Brog. Wavelength

Answer 46

Wavelnght= h / p (momentum)

Question 47

Energy (Atomic)

Answer 47

E= mc^2

Question 48

Speed of Wave

Answer 48

v= f wavelength

Question 49

Index of Refraction + Conservation

Answer 49

n= c/ v

n1sinø1 = n2sinø2

Question 50

Critical Angle

Answer 50

sinøc= n2/n1

Question 51

Focal Length Equation

Answer 51

1/ image distance + 1/object distance= 1/focal length

Question 52

Magnification

Answer 52

-Image distance/ object distance or final/ intial height

Question 53

dsinø = m x wavelength

Answer 53

yes